diff --git a/src/glob_lexer.mli b/src/glob_lexer.mli
index c814351b..6f626ada 100644
--- a/src/glob_lexer.mli
+++ b/src/glob_lexer.mli
@@ -1 +1,3 @@
-val parse_string : string -> (Re.t, int * string) result
+open Stdune
+
+val parse_string : string -> (Re.t, int * string) Result.result